diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index a7441a41..7cfe2c53 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -957,7 +957,7 @@ CFramebuffer* CHyprOpenGLImpl::blurMainFramebufferWithDamage(float a, CRegion* o
         glUniformMatrix3fv(m_RenderData.pCurrentMonData->m_shBLURPREPARE.proj, 1, GL_TRUE, glMatrix);
 #else
         wlr_matrix_transpose(glMatrix, glMatrix);
-        glUniformMatrix3fv(m_RenderData.pCurrentMonData->m_shBLURFINISH.proj, 1, GL_FALSE, glMatrix);
+        glUniformMatrix3fv(m_RenderData.pCurrentMonData->m_shBLURPREPARE.proj, 1, GL_FALSE, glMatrix);
 #endif
         glUniform1f(m_RenderData.pCurrentMonData->m_shBLURPREPARE.contrast, *PBLURCONTRAST);
         glUniform1f(m_RenderData.pCurrentMonData->m_shBLURPREPARE.brightness, *PBLURBRIGHTNESS);